Saw trimmer vise



Feb. 6, 1940, w, HERTLER v 2,188,976

SAW TR IMMER VI SE Filed March 14, 1958 FT "Q--"-"""'-\ ll lll ilINVENTOR. M m BY m4. A,

ATTORNEY.

by a lever 3il-having a handle 3|, levers 26 and 30 beingconnected by alink 32. ;Lever 30 is pivotally mounted at 33 on a block 34 which issecurely attached to the clamping bar 6 to be movable therewith, andblock 34 is movable rela-.

tive to block 23 within the limits, of the abutments constituted by oneside of block 23 and an abutting plate 35 attached to the slide bar 6by. a

screw 36.; A rod 3'! is secured to block 23 by screw 38' and extendsthrough a perforation or opening in the abutting plate 35. Coil spring39 is disposed around the rod 3'! with one end of the v spring abuttingthe plate 35 and the other end abuting an adjustable screw sleeve 43which interacts with a threaded portion of the rod 31. A stop pin 4! isprovided on the block- 34 for lever 30; a

The operation of the abovedescribedmecha nism is briefly as follows: Thetrimmer vise is fastened as shown in Fig. l with the screw El and: pinH'a in'serted. in thetable to securely fasten the baset thereto which,when fastened, brings. the clamping slide 6 in register with the edge ofthe abutment 3. With the handle'3l in theirai sedposition, as shown inFig. 1,1the eccentric'. 25 is.in a'position where the gib block 24 isout of contact with the guide rod 14. In'this position, block 23 is freeto slide on the guide id,

whichtpermitsquick adjustment of the clamping bar 6;: to any positionnecessary to engage the pie'ceA' by simply drawing the bar 6, which isaccomplished by pulling handle 3|, in the direction of the piece 4,to-bring the clamping bar 6 either: adjacentc-tolor :in contact with thepiece 4 The latter will be clamped'by the'actionof dew shown inFig. 3..By thismovement of handle 3 i the clamping bar emoves forward in thedirection ofthe piece 4; and. by the leverage of lever 33 throughthelink 32 against lever 23; the latter- Will bedepressed, causing theeccentric '25 to rotate, resulting in the gib block 24 pressing againstthecguide-bar I4 andlocking bar 23: in position: Downward movementofthehandle 3*! compresses sp'ring- 39, as shown in Fig. 3, and byraisinghandle 3i upward the locking. mechanism will-be released bya-spring action.

When: the clamping face 5--of the bar 6- is brought toabuttingengagement-with the piece to be clamped, the clampingaction,by'depressing handle 3t, first .,locksthe block 23 to the guide rod. I4and by further depressinghandle 3 l, the entire guide bar l4-ismoved-rearward against the-tension of the coil spring IT so that thepiece 4'-'-is= held against the abutment 3 by the back pressure ofthecoil spring ll. When handle '3! is raised the power'of the compressedspring I? also acts tosnap the handle 3| to the uppermostposition andretract the clamping'bar 6 to release the piece4i The eccentric,however, remains locked-sothat the clamping bar 6'will always returnto=the position-to which it'was originally adjusted for the" particularsize pieces to be acted upon, 'andif it isdesired to change the positionof the clamping slide bar 6 by movingthe block 23 on the guide bar l4,it is necessary to raise the handle-3| until lever 30 abuts the pin 4|which movement releases the eccentric and consequently the clampingblock23, which is then Q 7 freeto slide on the bar l4. s

By means of thehereinbefore describd'mchanism, adjustment of theclampingbar to differ-J ent size pieces can be made by manipulation of the samehandle or lever that is employed ior; a clamping the piece, whereby thesize-is quickly l adjustable to thedifierent size pieces'to be sawed ortrimmed. Also the eccentric locking mechanism, and the spring biasing ofthe guide rod providea reliable and positive'locking'means for thepieces. The device is of compact and durable I -construction and as willbe appreciated fromthe nature of the construction of the" operating f pmechanism, there is very little strain on the working, parts, so -thatthey will last indefinitely. As the eccentric shaft has a precision fitwith the j movable gib-block, it is not subject to excessive Wear, andthe gib block being coextensive with the block 23 has a side-contactingsurface for clampingly engaging the guide rod l4 so that'it llikewise'is not subjected to any Wear and willnot mar the guide rod M,which would hamperthe free sliding of the mechanism. 7 v v Although oneembodiment of the invention been herein illustratedand described,it'pw'ill be evident to-those skilled in the'art thatmodifications maybe made inthedetails of construction without departing from theprin'cipleshereinl set forth. w a i I claim:

'1. A visecomprising a base, a'stationary abutment' in spaced relationto said base, a clamping bar slidabiy mounted on. said base in alignmenti tending said bar and for locking it comprising a guide rodonsaid'base, a clamping block slidably mountedon saidrod', a gibinfsaid'block adapted with said stationary abutment, means for extoengage the rod, an eccentric for actuating said gib to engageand'disengage the guide rod; a lever for actuating saideccentric, a levercarried by the clampingbarior actuating said first named lever, saidlevers-being connected by a link, spring means biasing said clamping baragainst the clamping block, and spring/means biasing the guide rodagainst the-base whereby,

upon downward movement of the clamping bar lever,,the piece to be actedupon is yielding-1y engaged between thevclamping bar and thejstationaryabutment. j

2. A vise comprising a stationary base, I a

clamping bar movably mounted thereon, a guide rod mounted forlimited'axial'movement 'in' said base, a spring biasing said guidev rod,a clamping block mounted onsaid guide rod, a gib block in said clampingblock, an eccentric for actuating the gib blockzto engage and disengagethe guide rod, 'a lever for actuating the eccentric, and a lever mountedon said clamping bar and connected to said; first named lever, andspring meansbias'in'g said ,1 lever to ,the'upper position,

said lever beingoperative to release the gib block when it is desired toslide the clamping bloclivon the guide rod to extend. the clamping barand being operative to, move the clamping bar in clamping engagementwith'the piece to be acted upon without affectingthe gib block actuatinglever.

